90309422161 has 16 divisors (see below), whose sum is σ = 104118497280. Its totient is φ = 76729867920.

The previous prime is 90309422111. The next prime is 90309422179. The reversal of 90309422161 is 16122490309.

It is a cyclic number.

It is not a de Polignac number, because 90309422161 - 2⁷ = 90309422033 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 90309422161.

It is not an unprimeable number, because it can be changed into a prime (90309422111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 312076 + ... + 527266.

It is an arithmetic number, because the mean of its divisors is an integer number (6507406080).

Almost surely, 2^90309422161 is an apocalyptic number.

It is an amenable number.

90309422161 is a deficient number, since it is larger than the sum of its proper divisors (13809075119).

90309422161 is a wasteful number, since it uses less digits than its factorization.

90309422161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215724.

The product of its (nonzero) digits is 23328, while the sum is 37.

The spelling of 90309422161 in words is "ninety billion, three hundred nine million, four hundred twenty-two thousand, one hundred sixty-one".